The day i am no longer open to hearing the other side of the story is the day I am no longer myself, but instead am an extension of someone else (media, the group, muh team, a nationalist agenda, yesterday/the past, etc). Not wanting to understand the other side (or all sides if there is time for that) is a sign of a weak character and probably of weak intelligence, as well. Understanding is not the same as agreeing or condoning.